This notebook will begin looking at clustering methods on the expression of the genes in a single sample of the dataset of interest, from an unbiased approach.

Set Up

# Load libraries
library(magrittr)
library(scater)
library(readr)
library(bluster)
library(ggpubr)
library(pheatmap)

# Set file paths
data_dir <- file.path("results", "Gawad_processed_data")

# Source custom functions script
source(file.path("utils", "clustering-functions.R"))

Read in data

sample_290_normalized <- read_rds(
  file.path(data_dir, "SCPCS000216", "SCPCL000290_miQC_downstream_processed_normalized_reduced_sce.rds"))

Perform clustering

k-means

# Perform k-means clustering
kmeans_cluster_names <- paste("kmeans", c(4:10), sep = "_")

sample_290_normalized <- kmeans_clustering(
  sample_290_normalized,
  k_range = c(4:10),
  check_stability = TRUE
)

# Plot k-means
kmeans_plot_list <- kmeans_cluster_names %>%
  purrr::map(~ plotReducedDim(sample_290_normalized, dimred = "UMAP", colour_by = .x) + theme_bw())

cowplot::plot_grid(plotlist = kmeans_plot_list, ncol = 4)

graph-based, walktrap

# Perform graph-based walktrap clustering
walktrap_cluster_names <- paste("walktrap", c(5, 10, 15, 20, 25), sep = "_")

sample_290_normalized <- graph_clustering(
  sample_290_normalized,
  nn_range = c(5, 10, 15, 20, 25),
  weighting_type = "rank",
  cluster_function = "walktrap",
  check_stability = TRUE
)
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
# Plot
walktrap_plot_list <- walktrap_cluster_names %>%
   purrr::map(~ plotReducedDim(sample_290_normalized, dimred = "UMAP", colour_by = .x) + theme_bw())

cowplot::plot_grid(plotlist = walktrap_plot_list, ncol = 3)

graph-based, louvain

# Perform graph-based louvain clustering
louvain_cluster_names <- paste("louvain", c(5, 10, 15, 20, 25), sep = "_")

sample_290_normalized <- graph_clustering(
  sample_290_normalized,
  nn_range = c(5, 10, 15, 20, 25),
  weighting_type = "jaccard",
  cluster_function = "louvain",
  check_stability = TRUE
)
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
Warning in (function (to_check, X, clust_centers, clust_info, dtype, nn,  :
  detected tied distances to neighbors, see ?'BiocNeighbors-ties'
# Plot
louvain_plot_list <- louvain_cluster_names %>%
   purrr::map(~ plotReducedDim(sample_290_normalized, dimred = "UMAP", colour_by = .x) + theme_bw())


cowplot::plot_grid(plotlist = louvain_plot_list, ncol = 3)

Check cluster validity stats

k-means

# Check the k-means cluster validity stats for each of the clusters and return
# stats in a data frame
kmeans_stats_df <- create_metadata_stats_df(sample_290_normalized, c(4:10), 1, "kmeans")
Joining, by = "cell_barcode"
Joining, by = "cell_barcode"
Joining, by = "cell_barcode"
Joining, by = "cell_barcode"
Joining, by = "cell_barcode"
Joining, by = "cell_barcode"
Joining, by = "cell_barcode"
# Preview the results
head(kmeans_stats_df)

# Summarize the stats and return in a data frame
kmeans_summary_stats_df <- summarize_clustering_stats(kmeans_stats_df)

# Preview the summary results
head(kmeans_summary_stats_df)

purity plots

# Plot individual cluster purity stats
kmeans_purity_plots <- plot_cluster_purity(kmeans_stats_df)

kmeans_purity_plots

silhouette width plots

# Plot individual cluster silhouette width stats
kmeans_silhouette_plots <- plot_cluster_silhouette_width(kmeans_stats_df)

kmeans_silhouette_plots

graph-based, walktrap

# Check the walktrap cluster validity stats for each of the clusters and return
# stats in a data frame
walktrap_stats_df <- create_metadata_stats_df(sample_290_normalized, c(5:25), 5, "walktrap")
Joining, by = "cell_barcode"
Joining, by = "cell_barcode"
Joining, by = "cell_barcode"
Joining, by = "cell_barcode"
Joining, by = "cell_barcode"
  
# Preview the all stats results
head(walktrap_stats_df)

# Summarize the stats and return in a data frame
walktrap_summary_stats_df <- summarize_clustering_stats(walktrap_stats_df)

# Preview the summary results
head(walktrap_summary_stats_df)

purity plots

# Plot individual cluster purity stats
walktrap_purity_plots <- plot_cluster_purity(walktrap_stats_df)

walktrap_purity_plots

silhouette width plots

# Plot individual cluster silhouette width stats
walktrap_silhouette_plots <- plot_cluster_silhouette_width(walktrap_stats_df)

walktrap_silhouette_plots

graph-based, louvain

# Check the louvain cluster validity stats for each of the clusters and return
# stats in a data frame
louvain_stats_df <- create_metadata_stats_df(sample_290_normalized, c(5:25), 5, "louvain")
Joining, by = "cell_barcode"
Joining, by = "cell_barcode"
Joining, by = "cell_barcode"
Joining, by = "cell_barcode"
Joining, by = "cell_barcode"
# Preview the results
head(louvain_stats_df)

# Summarize the stats and return in a data frame
louvain_summary_stats_df <- summarize_clustering_stats(louvain_stats_df)

# Preview the summary results
head(louvain_summary_stats_df)

purity plots

# Plot individual cluster purity stats
louvain_purity_plots <- plot_cluster_purity(louvain_stats_df)

louvain_purity_plots

silhouette width plots

# Plot individual cluster silhouette width stats
louvain_silhouette_plots <- plot_cluster_silhouette_width(louvain_stats_df)

louvain_silhouette_plots

Check cluster stability

k-means

# Check and plot cluster stability
kmeans_cluster_names %>%
  purrr::walk(~ plot_cluster_stability(sample_290_normalized, .x))

graph-based, walktrap

walktrap_cluster_names %>%
  purrr::walk(~ plot_cluster_stability(sample_290_normalized, .x))

graph-based, louvain

louvain_cluster_names %>%
  purrr::walk(~ plot_cluster_stability(sample_290_normalized, .x))

Session info

sessionInfo()
R version 4.1.2 (2021-11-01)
Platform: x86_64-pc-linux-gnu (64-bit)
Running under: Ubuntu 18.04.3 LTS

Matrix products: default
BLAS:   /usr/lib/x86_64-linux-gnu/openblas/libblas.so.3
LAPACK: /usr/lib/x86_64-linux-gnu/libopenblasp-r0.2.20.so

locale:
 [1] LC_CTYPE=C.UTF-8       LC_NUMERIC=C           LC_TIME=C.UTF-8        LC_COLLATE=C.UTF-8    
 [5] LC_MONETARY=C.UTF-8    LC_MESSAGES=C.UTF-8    LC_PAPER=C.UTF-8       LC_NAME=C             
 [9] LC_ADDRESS=C           LC_TELEPHONE=C         LC_MEASUREMENT=C.UTF-8 LC_IDENTIFICATION=C   

attached base packages:
[1] stats4    stats     graphics  grDevices utils     datasets  methods   base     

other attached packages:
 [1] pheatmap_1.0.12             ggpubr_0.4.0                bluster_1.4.0              
 [4] readr_2.1.1                 scater_1.22.0               ggplot2_3.3.5              
 [7] scuttle_1.4.0               SingleCellExperiment_1.16.0 SummarizedExperiment_1.24.0
[10] Biobase_2.54.0              GenomicRanges_1.46.1        GenomeInfoDb_1.30.0        
[13] IRanges_2.28.0              S4Vectors_0.32.3            BiocGenerics_0.40.0        
[16] MatrixGenerics_1.6.0        matrixStats_0.61.0          magrittr_2.0.1             

loaded via a namespace (and not attached):
 [1] bitops_1.0-7              RColorBrewer_1.1-2        tools_4.1.2               backports_1.4.0          
 [5] utf8_1.2.2                R6_2.5.1                  irlba_2.3.3               vipor_0.4.5              
 [9] DBI_1.1.1                 colorspace_2.0-2          nnet_7.3-16               withr_2.4.3              
[13] tidyselect_1.1.1          gridExtra_2.3             compiler_4.1.2            cli_3.1.0                
[17] BiocNeighbors_1.12.0      DelayedArray_0.20.0       labeling_0.4.2            scales_1.1.1             
[21] digest_0.6.29             rmarkdown_2.11            XVector_0.34.0            pkgconfig_2.0.3          
[25] htmltools_0.5.2           sparseMatrixStats_1.6.0   fastmap_1.1.0             rlang_0.4.12             
[29] rstudioapi_0.13           DelayedMatrixStats_1.16.0 farver_2.1.0              generics_0.1.1           
[33] BiocParallel_1.28.2       dplyr_1.0.7               car_3.0-12                RCurl_1.98-1.5           
[37] BiocSingular_1.10.0       modeltools_0.2-23         GenomeInfoDbData_1.2.7    Matrix_1.3-4             
[41] Rcpp_1.0.7                ggbeeswarm_0.6.0          munsell_0.5.0             fansi_0.5.0              
[45] abind_1.4-5               viridis_0.6.2             lifecycle_1.0.1           yaml_2.2.1               
[49] carData_3.0-4             MASS_7.3-54               zlibbioc_1.40.0           flexmix_2.3-17           
[53] grid_4.1.2                parallel_4.1.2            ggrepel_0.9.1             crayon_1.4.2             
[57] lattice_0.20-45           cowplot_1.1.1             beachmat_2.10.0           splines_4.1.2            
[61] hms_1.1.1                 knitr_1.36                pillar_1.6.4              igraph_1.2.9             
[65] ggsignif_0.6.3            ScaledMatrix_1.2.0        glue_1.5.1                evaluate_0.14            
[69] renv_0.14.0               tweenr_1.0.2              vctrs_0.3.8               tzdb_0.2.0               
[73] polyclip_1.10-0           gtable_0.3.0              purrr_0.3.4               tidyr_1.1.4              
[77] assertthat_0.2.1          ggforce_0.3.3             xfun_0.28                 rsvd_1.0.5               
[81] broom_0.7.10              miQC_1.2.0                rstatix_0.7.0             viridisLite_0.4.0        
[85] tibble_3.1.6              beeswarm_0.4.0            cluster_2.1.2             ellipsis_0.3.2           
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